Economy · 6 Oct 2026 · 2 min read
Diesel above $6 a gallon: Trump lets trucks use untaxed red diesel
With diesel prices near record highs, the White House has temporarily allowed farm-grade fuel on highways and deferred the federal diesel tax until year-end.
The short answer
President Trump signed an order on October 5, 2026, temporarily allowing truckers and farmers to use red-dyed diesel, which is exempt from road fuel taxes, and deferring the 24.4-cent federal diesel tax through the end of 2026. US diesel averaged about $6.20 a gallon in early October, roughly $2.49 higher than a year earlier, after topping $6 for the first time in September.
What’s going on here?
President Donald Trump signed an executive order on Monday evening that temporarily lets truckers and farmers use red-dyed diesel on public roads. That fuel is normally reserved for farm equipment, construction machinery and other off-road vehicles, and it is exempt from the 24.4-cents-per-gallon federal tax on highway diesel. The order also tells the Treasury to defer collection of that tax through the end of 2026 and to explore ways to cancel it altogether. According to the White House, a typical truck could save upward of $100 each time it fills its tank.
What does this mean?
The move is a response to unusually expensive fuel. According to the Energy Information Administration, the US average retail price of diesel was about $6.20 a gallon on October 5, around $2.49 higher than a year earlier, after passing $6 for the first time ever in September. Gasoline averaged about $4.35, up about $1.23 from a year ago. Diesel matters beyond the pump because it powers the trucks, trains and farm machinery that move almost all goods, so its price feeds into food and consumer prices.
Supply is the core problem. The administration points to the wars in Ukraine and Iran and to a lack of refining capacity. Around two million barrels a day of Middle Eastern refining capacity remains offline, damaged Russian plants have reduced exports, and refining capacity outside China is expected to shrink again this year. The Group of Seven agreed to release 100 million barrels of crude and fuel from reserves over four months, with diesel front-loaded.
Whether that brings lasting relief is doubtful. Goldman Sachs expects the premium refiners earn on diesel and jet fuel to stay above $40 a barrel through 2027, about double its normal level, even if crude settles near $80, because refineries cannot easily keep up as demand recovers and inventories are rebuilt. Prices have eased slightly in recent weeks: the national diesel average fell about 18 cents in the latest week.
The pain is uneven across the country. West Coast drivers pay the most, with California diesel above $8 a gallon, while Gulf Coast prices are about $2 cheaper. Several states had already relaxed rules on dyed diesel before the federal order, and some local taxes may still apply, so the savings truckers actually see could vary by state. The tax deferral also lands weeks before the midterm elections, when fuel costs are a prominent political issue.
The bull case
Cheaper fuel for truckers and farmers could quickly lower transport costs, which may ease some pressure on food and goods prices. Combined with reserve releases and rising Gulf exports, the order could help prices keep drifting down from their September peak.
The bear case
A tax holiday does not create more diesel, and cheaper fuel can encourage more use, keeping prices high. The deferral also costs the government revenue that normally funds highways, and analysts expect tight refining capacity to keep diesel expensive into 2027.
Why should I care?
For markets:
Trucking, logistics and farm businesses get short-term cost relief, while refiners continue to benefit from unusually wide diesel margins.
The bigger picture:
High diesel prices quietly raise the cost of groceries and deliveries, so relief at the pump may matter more for household budgets than the headline suggests.
Market impact
| Asset (ticker) | Potential direction | Timeframe | Confidence | Reason |
|---|---|---|---|---|
| Refining stocks (CRAK ETF) | ↑ bullish | Long term | Low | Tight capacity keeps diesel margins near double their usual level. |
| Trucking stocks | ↑ bullish | Short term | Low | Tax-free fuel lowers operating costs for carriers. |
| Brent crude oil | ↔ neutral | Short term | Low | The order affects fuel taxes, not global crude supply. |
Potential impact, not investment advice.
Frequently asked questions
What is red-dyed diesel?
Red-dyed diesel is fuel intended for off-road uses such as farm and construction equipment. It is exempt from road fuel taxes, and using it on public roads is normally illegal. A temporary 2026 order allows truckers and farmers to use it.
How much does diesel cost in the US now?
The Energy Information Administration reported a national average of about $6.20 a gallon on October 5, 2026, roughly $2.49 more than a year earlier. Prices are highest on the West Coast and in California.
Why are diesel prices so high in 2026?
Wars in Ukraine and Iran have disrupted fuel supplies, Middle Eastern and Russian refineries are partly offline, and global refining capacity is shrinking while demand recovers, leaving inventories very low.
Sources: U.S. Energy Information Administration — Gasoline and Diesel Fuel Update, CNBC — Red-dyed diesel order, CNBC — Goldman on diesel prices
